Crossville – Laser Cutter Class: Safety And Basic Use Presented By CBI Maker Space on Monday, September 30th from 5pm-8pm at CBI. In this Safety and Basic Use class, learn to use a laser cutter to cut, etch, and engrave designs in a variety of materials. Closed-toe shoes are required. Class fee is 15$. Please see the CBI website to register or for mroe information.